Improvement in coffee-pots



taten ein@ @animi @tutti 'Leners Patent No. 84,020, dated Novanta 1o, isos.

IN COFFEE-POTS.

The Schedule referred to in these Letters fatent and making part of the same.

To all whom it lmay concern Be it known that we, HERMANN THM. and GUsTAv SCHLOTTMANN, both ofv New Haven, in the county of New Haven, in the State of Connecticut, have invented a new and improved Urn for Coffee, Tea,.&c.; and we do hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specication, in which drawing- .Figure 1 represents a vertical central section of this invention. I

'Figure 2 is a horizontal section thereof.

Similar letters indicate corresponding parts. This invention relates to an urnfor making coffee, tea, or other beverages of a similar nature, said urn being composed of a large strainer, secured to a nar- `row tubulaineok, to which is secured a bell-shaped Aseat for a cap, from which is suspended a. perforated disk closely fitting into the neck, in such a manner that the strainer affords a large area on which the ground coffee, tea-leaves, or other material can be spread in a comparatively thin layer, while at the same time the perforated disk prevents the ground coffee or other material from boiling up intothe mouth-piece, and the flanged mouth-piece and cap form waterjoints,-which eifectually prevent the escape of the aroma. The cap also acts as a safety-valve, allowing the surplus pressure to escape automatically, and preventing accidents. The bottom of the vessel forms a steam-chamber, so that the liquid contained in said vessel can be heated by steam.

A represents a vessel, made of sheet-metal, or any' other suitable material, in the form of a cylindrical column, or in any other desirable shape. The bottom of this vessel forms a steam-chamber, B, which is provided with afeed-pipe, a, and an exhaust-pipe, b. Over the exhaust-pipe extends a screen, c, which is perforated with small holes, so that the steam, on` being admitted through the feed-pipe, is compelled to permeate the chamber B, and to expend the largest portion of its inherent heat, before it escapes through the exhaust' p1pe.

'.Lhe upper edge ofthe vessel A is surrounded by al gutter, d, the outer wall of which rises above its inner edge, so that if vit (the gutter) fills with water to overflowing, the overflow will discharge into the interior of the vessel A. v

The inneredge of the gutter d fits into or under the flange e of the bell-shaped mouth-piece f, which is secured .to the tubular neck g, as clearly shown in the drawing. To the bottom end of the tubular neck is Securedthe strainer (l, the diameter of which is nearly equal to the inner diameter of thevessel A, so that it aifords an extensive area for the ground coffee or other material, and that said ground coffee'or other material can be spread thereon, in a -comparatively thin layer, allowing the hot water to permeate and extract the same to the best possible advantage.

'The upper edge o'f the tubular neck gl extends beyond the bottom of the bell-shaped mouth-piece f, 'and it forms-the seat for a cap, h and from the'centre of this cap is suspended a perforated disk, i, which, Awhen the cap is in position, rests upon a shoulder, j, in the interior of the tubular neck.

When a suiiicient quantity of water has been poured into the vessel A, the strainer Q containing the ground coce or other material is adjusted in position, and heat is applied. As soon as the vapors begin -to rise, they come in contact with the inner surface of the cap and of the anged mouth-piece, where the same condense, and a portion of the water resulting from the con- 1 densation accumulatesin the gutter d, and at the bottom of the mouth-piece j, and assoonas this water rises high enough, it forms water-joints round the ange of the mouthpiece and round the cap, whereby the escape of the aroma is eiiectnallyprevented.

If desired, a quantity of water-may be poured into the gutter and mouth-piece, before the heating-opera tion is commenced. In this case the air contained in the neck, between the level of the water and the cap, escapes through. veut-holes k into the vessel A.

When the liquid boils, the ground coffee or other material is liable tojrise up in the neck, and the perforated diski prevents its being forced out over thel top of said neck. f

When the liquid boils violently, and the pressure in the vessel A rises beyond a certain point, the cap his lifted ofI" from its seat, 'and the surplus pressure escapes automatically before any accident can occur.

If desired, the strainer D maybe constructedl of two perforated disks, one of which is secured to a cup tting over the bottom end of the strainer O, so that the `ground coffee or other material is confined between ther two disks, and prevented from rising up into. the neck g.

Having thus described our invention,

What we claim as new, and desire to secure by Letters Patent, is-

The arrangement and combination of the strainer I C, tubular neck-g, angedmouth-piece f, gutter d, cap

h, perforated disk fi, and vessel A, all constructed and operating substantially as and forthe purpose shown and described. 4 This specification signed by ns, this 7th day of Septomber, 1868.

H. THAL.

G. SGHLOITMANN. Witnesses; W. HAUFF, E. F. -KAsTENHUBEn 

